. . . they are structures that we build every time we engage in a thought that's just a little bit higher than a thought we had a moment before, or an activity that's just a little bit more noble than the activity we engaged in a moment before.
No. I had successfully solved the difficulty of finding a description of the electron which was consistent with both relativity and quantum mechanics. Of course, when you solve one difficulty, other new difficulties arise. You then try to sove them. You can never solve all difficulties at once.